The heart of an astronaut actually gets smaller when in outer space.
216
If two pieces of metal touch in space, they become permanently stuck together.
808
Scientists have confirmed that Enceladus, one of Saturn’s moons, has a watery ocean.
6
There are 5 to 10 times more stars in the known Universe than there are grains of sand on all the world's beaches, but a single grain of sand has more atoms than there are stars in the known Universe.
20
There is a mysterious and loud radio signal known as 'the space roar' that has yet to be explained.
15
Mars had an oxygen-rich atmosphere around 4 billion years ago
13
A lightning bolt generates temperatures five times hotter than those found at the sun's surface!
127
Approximately 115 tons of ocean salt spray enters the earth's atmosphere each second.
100